RU2579986C1 - Multiple-channel system for application of ultrashort pulse electromagnetic radiation with high frequency of repetition to ground broadband radio communication line - Google Patents

Abstract

FIELD: physics.

SUBSTANCE: invention relates to a multichannel complex action of very short-pulse electromagnetic radiation with high frequency of repetition to ground broadband radio communication line. In the above complex provides for reduced current flowing in generators antenna modules due to increase their number with preservation of resultant parameters generated by field and better reparability due to the modular construction complex.

EFFECT: possibility of flexible variation of parameters of generated field intensity, pulse repetition frequency and the beam pattern; creation of very short-pulse of electromagnetic radiation with high frequency of repetition frequency range of 30-3000 MHz for ground-based broadband radio communication line; simplifying the control device and higher reliability, consisting in improvement of time of faultless operation of the system.

2 cl, 1 dwg

Description

The invention relates to radio engineering, and more particularly to radio communications and can be used in multichannel complexes of exposure to ultrashort-pulse electromagnetic radiation with a high repetition rate, consisting of synchronously operating low-power emitters, on terrestrial broadband radio lines.

Multichannel emitting complexes are radio interference generating devices and are designed to emit powerful electromagnetic pulses in the frequency band 0.1 ÷ 40 GHz with a peak power of tens of megawatts to tens of gigawatts. Depending on the tasks to be solved, the radiating systems are equipped with various types of pulse generators, power supply, control and synchronization systems. Various types of antennas and various radiation scanning techniques are also used.

One of the main requirements for the creation of radio interference is the ability to suppress a variety of radio communications. Currently, there are no means to create ultrashort-pulse electromagnetic radiation with a high repetition rate to terrestrial broadband radio communication lines operating in a certain frequency range, therefore, the technical implementation of the proposed jamming device will reduce the imbalance in this area.

The level of technology.

Known radio jamming station, containing a series-connected receiving antenna, antenna switch, receiver, signal analyzer, voltage generator, modulator, amplifier, transmitter and transmitting antenna [A.I. Paly. Electronic warfare: (Means and methods of suppressing and protecting electronic systems). M .: "Military Publishing", - 1981, p. 56].

The disadvantage of this device is the inability to create the effect of ultrashort-pulse electromagnetic radiation with a high repetition frequency on terrestrial broadband radio links operating in the frequency range 0.03-3 GHz, the device is not reliable in operation, difficult to repair, and has an unsatisfactory resource consumption.

Of the known devices for generating interference to communication channels, a response interference station is known comprising a receiving antenna in series, an excitation unit and a radio transmitting unit with a transmitting antenna, while interference generation and control units are connected to the second and third outputs of the excitation unit, respectively, and to the second and third inputs - the first output of the control unit and the output of the jamming unit, respectively [V.I. Borisov, V.M. Zinchuk, A.E. Limarev, A.V. Nemchilov, A.A. Chaplygin. Spatial and probabilistic-temporal characteristics of the effectiveness of response interference stations when suppressing radio communication systems. M .: RadioSoft, - 2008, p. 320].

The disadvantage of this device is the inability to create the effect of ultrashort-pulse electromagnetic radiation with a high repetition rate on terrestrial broadband radio links operating in the frequency range 0.03-3 GHz, the device is difficult to control, has a low resource consumption and reliability.

The closest in technical essence and the achieved result is a radio noise generating device containing a receiving antenna, a receiving-excitation unit and a radio transmitting unit with a transmitting antenna connected in series, while interference shaping and control units are connected to the second and third outputs of the receiving-exciting unit, respectively, and to the second and third inputs - the first output of the control unit and the output of the jamming unit, respectively, in addition, it is introduced in series with a separate clock synchronization unit, a pseudo-random sequence generator and a radio suppression unit for discrete communication channels, while the input of the clock synchronization unit is connected to the third output of the control unit, and the second output is connected to the second input of the discrete communication channel suppression unit, the third input of which is connected to the second output of the control unit and the output is with the fourth input of the excitatory block (patent for invention No. 2451402 dated 08/04/2011, IPC H04K 3/00).

The disadvantage of this device is the inability to create the effect of ultrashort-pulse electromagnetic radiation with a high repetition rate and consisting of synchronously operating low power emitters on terrestrial broadband radio lines for the formation of radio interference operating in the frequency range 0.03-3 GHz, low reliability, maintainability, resource intensity and complexity of device management.

The technical objectives of this invention are: expanding the functionality of a multichannel complex, consisting of synchronously operating low power emitters, consisting in the possibility of flexible changes in the parameters of the created field — intensity, pulse repetition rate, radiation pattern — through the use of a multichannel structure and installed control software on a personal computer, creating ultrashort-pulse electromagnetic radiation with high repetition frequency in the GHz frequency range 0,03-3 to act on terrestrial broadband radio link; simplified device management; increased reliability, which consists in increasing the uptime of the complex, which is ensured by a decrease in the flowing current in the generators of the antenna modules, by increasing their number while maintaining the resulting parameters of the created field and increasing maintainability due to the modular construction of the complex.

The technical result is achieved due to the fact that a multi-channel complex of ultra-short pulse electromagnetic radiation with a high repetition rate, consisting of synchronously operating low power emitters, on terrestrial broadband radio lines, including a generator synchronization system consisting of n power supplies, a control unit as part of a control device generators and n switching units; n-antenna modules containing high-voltage pulse generators and TM-horn emitting antennas connected to them; control and measuring unit, including uninterruptible power supply, analog-to-digital recorder, voltage divider, coaxial communication line, measuring transducer of pulsed electric field strength; source for ensuring the operation of the complex in standalone mode; while the power from the external power source of the complex is supplied to the inputs of the parallel-connected power supplies, the outputs of which are connected in series with the input of the control unit and the inputs of the parallel-connected n switching units, the outputs of which are in turn connected to the high-voltage pulse generators of the n-antenna modules, simultaneously the power from the external power source of the complex is fed to a personal computer, an uninterruptible power supply, the output of which is connected in series with the input of the analog-digital ovogo registrar; in this case, the multichannel complex is controlled by a personal computer with enhanced noise immunity, commands from which are transmitted via an optical communication line to a control unit that sets the operating modes of radiation, control commands from which are sent to each n-antenna module consisting of a high voltage generator, the output of which is connected with the input of the TM-horn antenna, the radiation of each n-antenna module is fed to a pulse electric voltage measuring transducer A field whose output is connected in series with the input of a coaxial communication line, the output of which is connected in series with the input of a voltage divider, the output of which is in turn connected to the input of an analog-to-digital recorder, in addition, the complex is additionally equipped with an autonomous power source and uninterruptible power supply and can work offline.

In addition, the multi-channel complex of the influence of ultrashort-pulse electromagnetic radiation with a high repetition rate, consisting of synchronously operating low-power emitters, on terrestrial broadband radio communication lines operates in a continuous frequency range of 0.03-3 GHz.

The invention is illustrated in the circuit shown in FIG. one.

The multi-channel complex of ultrashort pulse electromagnetic radiation exposure consists of:

generator synchronization systems - I,

Including generator control unit - II;

n power supply units - 1,

control unit - 2 as part of a control unit for generators II;

n switching blocks - 3;

n-antenna modules - III, containing

high voltage pulse generators - 4;

TM-horn emitting antennas - 5;

control unit IV, including

uninterruptible power supply - 6;

analog-digital recorder - 7;

voltage divider - 8;

coaxial communication line - 9;

pulse electric field measuring transducer - 10;

the source of the offline operation of the complex is 11;

personal computer - 12.

A multichannel complex of influence of ultrashort-pulse electromagnetic radiation with a high repetition rate on terrestrial broadband radio lines that operate in the frequency range 0.03-3 GHz.

The operation of the complex is provided for in a rather wide range of frequencies characteristic of various radio communication and broadcasting systems, including satellite, cellular, and mobile communications. The work of the complex in these ranges is necessary to ensure widespread use of the inventive device. So, from literary sources it is known that the frequency band from 0.03 to 3 GHz covers several frequency ranges:

- 3-30 MHz - broadcasting, radio communications, walkie-talkies;

- 30-300 MHz - television, radio broadcasting, radio communications, walkie-talkies;

- 0.3-3 GHz - television, radio communications, mobile phones, walkie-talkies, satellite navigation;

- 3-30 GHz - radar, Internet, satellite TV, radio communications, wireless computer networks.

The multichannel complex of influence of ultrashort pulse electromagnetic radiation works as follows. General management of the complex is carried out by a personal computer 12 with enhanced noise immunity. Commands from a personal computer via an optical communication line are sent to control unit 2 as part of a control unit for generators II. The control unit 2, at the command of the computer unit, sets the necessary operating modes that are applied to the high voltage pulse generators 4 included in the antenna modules III, the start pulses, and then to the TM-horn emitting antennas 5 that generate electromagnetic radiation.

From the antenna modules, the radiation enters the measuring transducer of the pulsed electric field 10 of the control and measuring unit IV. Next, through a coaxial communication line 9, the signal is transmitted to the input of the voltage divider 8 and then to the input of the analog-to-digital recorder 7.

Power supplies 1 provide the necessary voltage for the complex, and the control and measuring unit IV, including an uninterruptible power supply 6; analog-to-digital recorder 7; voltage divider 8; coaxial communication line 9; a measuring transducer of the intensity of a pulsed electric field 10, is necessary to determine the amplitude-time parameters of the complex.

Moreover, the multichannel complex of the impact of ultrashort-pulse electromagnetic radiation with a high repetition rate, consisting of synchronously operating low-power emitters, on terrestrial broadband radio lines is provided with both an external power source and an autonomous power source 11.

In multichannel communication complexes, the number of channels can be more than 100, and each channel has an individual adjustable delay in the range of 10–20 ns with an installation accuracy of 20–40 ps. Channel delays provide adjustment of the total delay of high-voltage pulse generators, and also form the necessary phase delays when the complex operates in scanning mode. Control unit II also corrects delays when the operating temperature of the complex changes.

It is known that to reduce the overall complex it is necessary to reduce the size of the antenna array. For this, the efficiency of a single module should be increased, which can be realized by optimally increasing the number of minimum antennas by reducing the antenna aperture. This will improve the reliability, maintainability, resource intensity and flexibility of complex management.

At the same time, it was established by experimental data that the number of antenna modules is determined by the magnitude of the intensity of the generated electric field. The lower the electric field, the smaller the number of antenna modules in the complex.

OJSC "MIRTI" has developed and tested a multi-channel complex of ultrashort-pulse electromagnetic radiation with a high repetition rate, consisting of synchronously operating low-power emitters, on terrestrial broadband radio lines. It was experimentally established that a multichannel complex provides emission of pulses of an electric field with an amplitude of 100 kV / m at a pulse repetition rate of 10 MHz.

Based on the experimental data, the MIRTI OJSC selected the size of the radiating antenna array equal to 150 × 150 cm. It was established that the radiating antenna array consists of (150 × 150/9 × 9) ~ 256 radiation channels that form 64 antenna modules uniting 4 radiation channels. It was determined by calculation that to achieve an amplitude of the emitted field equal to 100 kV / m, it is necessary that each of the 64 radiating antenna modules provide an amplitude of 1.3 ÷ 1.6 kV / m, and the field amplitude of 100 kV / m will be achieved with the synchronous operation of all 64 modules with synchronization accuracy of ± 20 ÷ 30 ps. In this case, the radiation of all modules is summed in amplitude with an accuracy of 10 ÷ 20%.

For operation, high-voltage pulse generators, a constant voltage of 100 V is calculated. The power supply for 64 generators is made of 2 modules.

To generate radiation at a frequency of 60 MHz, the complex uses a series connection of 4 sections, each of which consists of 16 antenna modules operating at a frequency of 15 MHz, so that the sequence of field pulses is 60 MHz. At a pulse repetition rate of 5 MHz, the maximum amplitude of the field strength is about 25 kV / m.

With this construction of the complex, the following advantages are realized and achieved:

- the method of modular construction of emitters using emitter synchronization systems is used;

- radio interference is formed on terrestrial broadband and ultra-wideband radio communication lines operating in the frequency range 0.03-3 GHz in order to reduce the quality of their functioning;

- the ability to control the synchronization modes of the radiating system and the control and measuring system for collecting, storing and processing measurement information and automated control of the operating modes of the measuring system and the test complex as a whole.

Claims (2)

1. A multi-channel complex of the influence of ultrashort-pulse electromagnetic radiation with a high repetition rate, consisting of synchronously operating low-power emitters, on terrestrial broadband radio lines, including a generator synchronization system, consisting of n power supplies, a control unit as part of a generator control device and n switching units; n-antenna modules containing high-voltage pulse generators and connected to them TM-horn emitting antennas; control and measuring unit, including uninterruptible power supply, analog-to-digital recorder, voltage divider, coaxial communication line, measuring transducer of pulsed electric field strength; source for ensuring the operation of the complex in standalone mode; while the power from the external power source of the complex is supplied to the inputs of the parallel-connected power supplies, the outputs of which are connected in series with the input of the control unit and the inputs of the parallel-connected n switching units, the outputs of which are in turn connected to the high-voltage pulse generators of the n-antenna modules, simultaneously the power from the external power source of the complex is fed to a personal computer, an uninterruptible power supply, the output of which is connected in series with the input of the analog-digital ovogo registrar; in this case, the multichannel complex is controlled by a personal computer with enhanced noise immunity, commands from which are transmitted via an optical communication line to a control unit that sets the operating modes of radiation, control commands from which are sent to each n-antenna module consisting of a high voltage generator, the output of which is connected with the input of the TM-horn antenna, the radiation of each n-antenna module is fed to a pulse electric voltage measuring transducer A field whose output is connected in series with the input of a coaxial communication line, the output of which is connected in series with the input of a voltage divider, the output of which is in turn connected to the input of an analog-to-digital recorder, in addition, the complex is additionally equipped with an autonomous power source and uninterruptible power supply and can work offline. 2. A multi-channel complex of the influence of ultrashort-pulse electromagnetic radiation with a high repetition rate, consisting of synchronously operating low-power emitters, on terrestrial broadband radio lines according to claim 1, characterized in that it operates in a continuous frequency range of 0.03-3 GHz.

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